Photosystem I and NADPH Formation
This video presents the same text shown beside it, spoken and on screen. It adds nothing the text does not say.
State
Photosystem I absorbs light to re-energize the arriving electron, then passes it to NADP+, reducing it to NADPH for use in the Calvin cycle.
Show
NADPH built at photosystem I carries its high-energy electron to the light-independent reactions, playing the role NADH plays in cellular respiration.
Watch for
Photosystem I does not replace its own electron by splitting water — only photosystem II does that.